| Regimental number | 2634 |
| Place of birth | Dalby Queensland |
| Religion | Roman Catholic |
| Occupation | Chemist's assistant |
| Address | Esk, Queensland |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Mother, Mrs Bridget Callaghan, Esk, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 49th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/66/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 49th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 4745 Pte William Michael CALLAGHAN, 9th Bn, returned to Australia, 18 July 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |